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【单选题】
关于表皮颗粒层细胞的结构特征,哪项是错误的A.
由3~5层梭型细胞组成
B.
具有活跃的分裂增殖能力
C.
细胞核、细胞器已渐趋退化
D.
胞质内含许多板层颗粒
E.
细胞质内含有许多透明角质颗粒
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举一反三
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A.
help
B.
to help
C.
helping
D.
helped
【单选题】______ ,he is ready to accept suggestions from different sources.
A.
Instead of his contributions
B.
For all his notable contributions
C.
However his notable contributions
D.
His making notable contributions
【简答题】句型转换。 1. He is ready for the Christmas. (改为同义句) He is for the Christmas. 2. He didn't come here because he was ill . (就画线部分提问) he come here? 3. Jenny eats jam every morning. (用 tomorrow morning替换every...
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A.
no
B.
some
C.
half
D.
full
【单选题】He____the maths examination if he had worked hard enough, but he didn't.
A.
would pass
B.
has passed
C.
would have passed
D.
passed
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